Capital One

Capital One Account Lookup API

The Capital One Account Lookup API is a DevExchange product that lets approved partners resolve and retrieve consumer account information such as balances, transaction history, and account status. Integrators use it to surface up-to-date Capital One account details inside partner applications and dashboards. Access is secured with OAuth 2.0 client credentials, exercised first in the DevExchange sandbox and then promoted to production after partner approval. Documentation is HTML-only on the DevExchange portal; no downloadable OpenAPI is published.

GitHub

Documentation

📖
Documentation
https://developer.capitalone.com/products/account-lookup?id=24064-1

Other Resources

🔗
GraphQL
https://raw.githubusercontent.com/api-evangelist/capital-one/refs/heads/main/graphql/capital-one-graphql.md
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/capital-one/refs/heads/main/apis.yml

API entry from apis.yml

apis.yml Raw ↑ 
aid: capital-one:account-lookup-api
name: Capital One Account Lookup API
tags:
- Accounts
- Banking
- United States
baseURL: https://api-sandbox.capitalone.com
humanURL: https://developer.capitalone.com/products/account-lookup?id=24064-1
properties:
- url: https://developer.capitalone.com/products/account-lookup?id=24064-1
  type: Documentation
- url: graphql/capital-one-graphql.md
  type: GraphQL
description: The Capital One Account Lookup API is a DevExchange product that lets approved partners resolve
  and retrieve consumer account information such as balances, transaction history, and account status.
  Integrators use it to surface up-to-date Capital One account details inside partner applications and
  dashboards. Access is secured with OAuth 2.0 client credentials, exercised first in the DevExchange
  sandbox and then promoted to production after partner approval. Documentation is HTML-only on the DevExchange
  portal; no downloadable OpenAPI is published.